#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>
#include"2.h";
#include"1.h";
using namespace std;

int add(int x=1, int y=3, int z = 10) {
	int sum = x + y + z;
	return sum;
}
int main() {
	

	int m1, m2,m3, m4;
	m1 = add(3, 4, 1);
	m2 = add(3, 4);
	m3 = add(3);
	m4 = add();
	cout << m1 << endl;
	cout << m2 << endl;
	cout << m3 << endl;
	cout << m4 << endl;

	/*struct first::A node1;
	struct second::A node2;*/
}